These are iron rule.

这都是铁律。

youdao

England was under iron rule in the time of the Norman Kings.

英国在诺曼底王朝时代受到严厉统治。

youdao

Conversely, a successful reimposition of Mr. Assad's iron rule would give succour to all Arab despots.

反过来说，如果阿萨德再度成功确立铁腕统治，则将助长阿拉伯世界所有暴君的势力。

youdao

Either way, China's leaders will not put international outrage above any internal threats to their iron rule.

ECONOMIST: China: Three men who frighten the party | The

After decades of iron rule by one man, it will take time to build the institutions needed for a democratic Libya.

WHITEHOUSE: President Obama Salutes the People of Libya

But there is one iron rule, he tells me - no mirrors.

BBC: Las Vegas casinos trumped by Chinese 'Sin City'